Okay Akio123 here again:
Okay so I'm bi right. Me and this guy kiss, but it's the guy that my friend likes. The guy knows this and still kisses me. We both like it and seem to be into it. The next day he decides to ask my friend that likes him out. I feel a bit used and distraught.
Maybe he just thought you weren't the one for him or something along those lines? I mean, he may have been holding those feelings for the other person in for a while, and he was trying to forget about them, so he thought he might try it with someone else.
Don't worry, there's always someone else. :]